#include <bits/stdc++.h>
using namespace std;
int n,nums[100005],maxn;
int main(){
    freopen("duel.in","r",stdin);
    freopen("duel.out","w",stdout);
    scanf("%d",&n);
    for(int i=1;i<=n;i++){
        int s;
        scanf("%d",&s);
        nums[s]++;
        maxn=max(maxn,nums[s]);
    }
    cout<<maxn<<endl;
    return 0;
}